Free SCFHS Nuclear Medicine Technologist mock test
25 original exam-style questions from our Nuclear Medicine Technologist bank, timed at the exam’s own pace, scored against the 60% SCFHS pass mark. They span 9 of the 9 blueprint domains, so you will see exactly where you are weakest - free, no sign-up.
Sit 25 original exam-style questions at real exam pace
These are 25 original questions taken from our Nuclear Medicine Technologist bank, spread across 9 of the 9 domains of the published blueprint. You get 72 seconds per question, which is exactly the pace of the real exam (30 minutes for 25). At the end you will see which domains you are weakest in, and the full worked reasoning for every question.
- 25
- questions
- 30:00
- time limit
- 60%
- SCFHS pass mark
A short diagnostic cannot predict whether you will pass - only the real exam does that. It will show you, honestly, where you currently stand.
Quick answer
The Nuclear Medicine Technologist exam at a glance
The Nuclear Medicine Technologist licensing exam is a computer-based, multiple-choice test, and each GCC regulator sets its own. SCFHS publishes exact figures, listed below. DOH licenses the title without a published written exam. This free mock gives you 25 original exam-style questions at 72 seconds each, scored against the 60% SCFHS pass mark, then shows your weakest domains.
Published exam figures
- SCFHS
Saudi Classification Examination - Nuclear Medicine Technologist
Saudi Arabia150 MCQs180 minutes60%
pass mark
- Attempts in the UAE
- 3 in total across DHA, DOH, MOHAP and SHA
- This free mock
- 25 questions · 30 minutes · 9 of 9 domains
- Full bank
- 450+ questions · 3 to 6 papers · AED 269
- Regulators
- SCFHS
How this free Nuclear Medicine Technologist mock works
- 25
- original questions
- 30 min
- time limit
- 72s
- per question
- 9 of 9
- blueprint domains
- You get 72 seconds per question, the pace of a 150-question paper in 3 hours. The timer runs in your browser and ends the sitting when it reaches zero.
- Your score is set against the 60% SCFHS pass mark, the published figure for this exam. No other number is invented: there is no percentile and no pass probability.
- At the end you see your score, your pace per question, every domain ranked weakest first, and the worked answer and source for all 25 questions.
- You can mark each answer “sure” or “not sure”. Wrong answers you were sure about are shown first, because they are the ones you would not stop to check in the real exam.
- Your last result is saved in your own browser only, so you can come back and compare. Nothing is sent to us.
What the real Nuclear Medicine Technologist licensing exam looks like
The Nuclear Medicine Technologist exam is a computer-based multiple-choice paper, published by one regulator: SCFHS (pass mark 60%). DOH license the title without a published written exam. Every regulator's format, pass mark and fee is in the table below; confirm yours before booking.
Pass marks at a glance: exam codes and pass marks by regulator for every written exam in one sourced table.
Before you can book the exam at all you need Dataflow primary source verification of your degree, licence and experience, which typically runs several weeks. Candidates often underestimate this and end up sitting the exam sooner after study than they planned. Check where you stand with our free eligibility checker or confirm whether your title even requires an exam using the Prometric exam checker.
You get three attempts in total across all UAE authorities, not three each, under the Unified Professional Qualification Requirements. At roughly AED 880 per attempt, plus the licensing delay each failure adds to your visa and start date, the cost of going in underprepared is not really the exam fee.
| Regulator | Exam | Format | Pass mark | Fee per attempt |
|---|---|---|---|---|
Saudi Classification Examination - Nuclear Medicine Technologist | 150 MCQs in 180 minutes | 60% | Not published | |
No exam published for this title Not in the DHA CBT list; DHA's guideline assesses licensed titles that are not listed by oral | Not published | Not published | Not published | |
No written exam published Oral assessment, 45-60 minutes; no written exam (DOH Licensing Procedure Manual 2024) | Panel / review | Not published | Not published | |
No exam published for this title MOHAP publishes no exam for this title that we could find; check with MOHAP | Not published | Not published | Not published | |
No exam published for this title SHA publishes no exam for this title that we could find; check with SHA | Not published | Not published | Not published | |
No exam published for this title No DHP Qatar exam blueprint published for this title; check with DHP | Not published | Not published | Not published | |
No exam published for this title NHRA publishes no exam for this title that we could find; check with NHRA | Not published | Not published | Not published | |
No exam published for this title No OMSB exam published for this title; check with OMSB | Not published | Not published | Not published | |
No exam published for this title Kuwait MOH publishes no exam for this title; check with the MOH | Not published | Not published | Not published |
Highlighted rows publish figures for this exact Nuclear Medicine Technologist exam; the others show the regulator's general rules.
What is on the Nuclear Medicine Technologist exam: the full blueprint
The published blueprint splits into 9 domains and 65 testable sub-topics. For each one you can see its weight, how many questions this mock asks on it, and about how many the full bank holds.
- Physics and Radiation Safety
19 sub-topics · 5 in this mock · about 86 in the full bank
19% [SCFHS Nuclear Medicine Technologist blueprint, 150 MCQs]
- Radiopharmaceuticals
7 sub-topics · 2 in this mock · about 32 in the full bank
7% [SCFHS Nuclear Medicine Technologist blueprint, 150 MCQs]
- Instrumentation
7 sub-topics · 2 in this mock · about 32 in the full bank
7% [SCFHS Nuclear Medicine Technologist blueprint, 150 MCQs]
- Quality Control
7 sub-topics · 2 in this mock · about 32 in the full bank
7% [SCFHS Nuclear Medicine Technologist blueprint, 150 MCQs]
- Clinical Procedures
33 sub-topics · 7 in this mock · about 149 in the full bank
33% [SCFHS Nuclear Medicine Technologist blueprint, 150 MCQs]
- Management and Ethics
5 sub-topics · 2 in this mock · about 23 in the full bank
5% [SCFHS Nuclear Medicine Technologist blueprint, 150 MCQs]
- Image Production / Processing
6 sub-topics · 2 in this mock · about 27 in the full bank
6% [SCFHS Nuclear Medicine Technologist blueprint, 150 MCQs]
- Image Interpretation and Image Artifact
6 sub-topics · 2 in this mock · about 27 in the full bank
6% [SCFHS Nuclear Medicine Technologist blueprint, 150 MCQs]
- Patient Care
10 sub-topics · 1 in this mock · about 45 in the full bank
10% [SCFHS Nuclear Medicine Technologist blueprint, 150 MCQs]
Bank counts are estimates from the published weights the bank is written to, rounded.
This mock samples 9 of 9 domains. The full bank covers all 9 across 450+ questions.
See the full bank - AED 269How to use your mock score
These bands are set against the 60% SCFHS pass mark and match the verdict on your result screen. On 25 questions, a score near the pass mark has a 95% margin of error of about ±19 points, so treat the band as a direction, not a forecast.
Below the line
On this sample you would likely fall short of the 60% pass mark today. Do not book yet. Start with your two weakest domains from the result, then sit full-length papers until you clear the line with room to spare.
Close to the line
A few questions decide it. On a 150-question paper, every 1% is one or two questions, so drill your weakest domains and build a margin on timed papers before you book.
On track
Clear of the pass mark on this sample. 25 questions is a small sample, so confirm it over full-length timed papers before you book: stamina and pacing fail candidates who know the material.
Getting an honest score
- 1Sit it cold, once. Do not look anything up. A diagnostic you help yourself through tells you nothing. The number you get is only useful if it is honest.
- 2Read every rationale, especially the ones you got right. Getting a question right by elimination is not the same as knowing it. The worked reasoning is free, whether or not you buy anything.
- 3Work on your weakest domain first. The breakdown orders your domains worst first for exactly this reason. Studying what you are already good at feels productive and moves nothing.
- 4Re-sit under full exam conditions later. The real paper is much longer than 25 questions and stamina matters. The full bank's 3 to 6 papers are written for exactly this.
A worked Nuclear Medicine Technologist exam question
Every question in the mock and in the paid bank is written to this standard: a clinical stem, four plausible options and the reasoning for the answer, with its source.
Clinical Procedures
Which instruction best improves image quality in a bone scan after Tc-99m MDP injection?
- AFast for 12 hours before the imaging appointment
- BDrink fluids and void frequently before imagingCorrect
- CAvoid fluids until the images are completed
- DLie still on the couch for 3 hours after injection
Why: Hydration and frequent voiding clear unbound tracer and reduce bladder activity. Fasting is not needed for a bone scan, restricting fluids slows clearance and increases background, and lying still for 3 hours is not required.
Source: Waterstram-Rich and Gilmore, Nuclear Medicine and PET/CT: Technology and Techniques, 8th ed. (2017)
Nuclear Medicine Technologist sample questions with answers
10 more original exam-style Nuclear Medicine Technologist questions, worked in full. They are not real or recalled exam questions, and none of them is in the mock above or on the bank page, so sit the mock first if you have not.
Question 1 · Clinical Procedures
According to ASNC guidance, what is the minimum caffeine abstinence before a regadenoson stress study?
- A2 hours
- B12 hours
- C6 hours
- D48 hours
Show answer and explanation
Correct answer: B. 12 hours
Caffeine antagonises adenosine receptors and can blunt the vasodilator effect, so caffeine is withheld for at least 12 hours before regadenoson or adenosine. Shorter intervals leave enough caffeine to reduce the response.
Reference: Henzlova et al., ASNC Imaging Guidelines for SPECT Nuclear Cardiology Procedures: Stress, Protocols, and Tracers (2016)
Question 2 · Image Production / Processing
What artefact results when the CT attenuation map and the PET emission data are misregistered?
- ALoss of the counts in the emission image
- BUniform blurring of the CT image
- CFalsely elevated or reduced uptake, such as myocardial uptake appearing in the lung
- DIncreased random coincidences in the field of view
Show answer and explanation
Correct answer: C. Falsely elevated or reduced uptake, such as myocardial uptake appearing in the lung
Misalignment applies the wrong attenuation correction, so uptake can be over- or under-corrected, for example a heart defect or lung-edge uptake. It does not remove all counts. Blurring of the CT image is not the issue, and randoms depend on count rates.
Reference: Waterstram-Rich and Gilmore, Nuclear Medicine and PET/CT: Technology and Techniques, 8th ed. (2017)
Question 3 · Instrumentation
Which factor increases the random coincidence rate in PET most strongly?
- AIncreasing the activity in the field of view
- BNarrowing the energy window around 511 keV
- CUsing a shorter coincidence time window setting
- DUsing a lower-resolution detector crystal array
Show answer and explanation
Correct answer: A. Increasing the activity in the field of view
Random coincidences rise with the square of the single-event rate, so more activity in the field of view causes disproportionate randoms. A narrower coincidence window lowers them, and a narrower energy window rejects scatter rather than randoms. Crystal resolution does not change random rates directly.
Reference: Cherry, Sorenson and Phelps, Physics in Nuclear Medicine, 4th ed. (2012)
Question 4 · Clinical Procedures
In hepatobiliary imaging the gallbladder is not seen after 60 minutes, but tracer is in the small bowel. What is the appropriate next step?
- AEnd the study and report the gallbladder as normal on this scan
- BGive morphine and image for 30 more minutes, or delay imaging
- CRepeat the injection with double the administered activity today
- DGive sincalide immediately and continue to image for an hour
Show answer and explanation
Correct answer: B. Give morphine and image for 30 more minutes, or delay imaging
Non-filling after 60 minutes suggests cystic duct obstruction, so morphine or delayed images confirm it by encouraging filling. Reporting a normal study would miss acute cholecystitis. Doubling the dose is unnecessary, and sincalide is used for ejection fraction, not to confirm non-filling.
Reference: Waterstram-Rich and Gilmore, Nuclear Medicine and PET/CT: Technology and Techniques, 8th ed. (2017)
Question 5 · Physics and Radiation Safety
Weekly wipe tests of the hot lab benches are collected. Which instrument is best for counting them?
- AA dose calibrator
- BA pocket dosimeter
- CA sodium iodide well counter
- DA survey meter held at the surface
Show answer and explanation
Correct answer: C. A sodium iodide well counter
Wipes carry very small activities, which need a sensitive scintillation well counter. A dose calibrator is not sensitive enough at this level, and a pocket dosimeter records personal dose. A surface survey meter finds fixed contamination but does not measure removable activity.
Reference: Christian and Waterstram, Nuclear Medicine and PET/CT: Technology and Techniques, 8th ed. (2017)
Question 6 · Instrumentation
Why does a conventional gamma camera use a thin sodium iodide crystal of about 9.5 mm?
- AIt raises sensitivity for 364 keV photons
- BIt removes the need for a collimator
- CIt stops scatter in the patient from reaching the detector crystal
- DIt sharpens intrinsic resolution but loses high-energy sensitivity
Show answer and explanation
Correct answer: D. It sharpens intrinsic resolution but loses high-energy sensitivity
A thin crystal limits light spread, which sharpens intrinsic resolution, but fewer high-energy photons interact in it. The design is tuned for 140 keV. A thin crystal does not replace the collimator and does not stop patient scatter, which is handled by the energy window.
Reference: Cherry, Sorenson and Phelps, Physics in Nuclear Medicine, 4th ed. (2012)
Question 7 · Quality Control
What does the daily PET blank scan primarily check?
- ADetector performance and drift across the ring
- BThe accuracy of the SUV calibration
- CThe CT number of water
- DThe accuracy of table positioning
Show answer and explanation
Correct answer: A. Detector performance and drift across the ring
A scan of a rotating Ge-68 source shows detector sensitivity and drift, and a failed block appears as a streak in the sinogram. SUV calibration is checked against the dose calibrator separately. CT water number and table position are checks on the CT and bed.
Reference: Christian and Waterstram, Nuclear Medicine and PET/CT: Technology and Techniques, 8th ed. (2017)
Question 8 · Clinical Procedures
How long after Tc-99m MDP injection does bone imaging usually begin?
- AImmediately
- B2 to 4 hours
- CAbout 30 minutes
- DAbout 24 hours
Show answer and explanation
Correct answer: B. 2 to 4 hours
Bone uptake needs time for tracer to clear from soft tissue, so delayed images are taken 2 to 4 hours after injection. Imaging at once or at 30 minutes shows blood pool, which is the early phase. Imaging at 24 hours leaves too few counts.
Reference: Mettler and Guiberteau, Essentials of Nuclear Medicine and Molecular Imaging, 7th ed. (2018)
Question 9 · Clinical Procedures
Which radiopharmaceutical is better for sentinel node lymphoscintigraphy in breast cancer?
- ATc-99m MAA, whose large particles lodge in the lung
- BTc-99m MDP, which binds to the skeleton
- CFiltered Tc-99m sulfur colloid, taken up by lymphatics
- DFree Tc-99m pertechnetate, which is cleared by the kidney
Show answer and explanation
Correct answer: C. Filtered Tc-99m sulfur colloid, taken up by lymphatics
Small colloid particles drain from the injection site and are retained in the first node, which allows mapping. MAA particles are too large and are meant for the lung. MDP and pertechnetate do not localise in lymph nodes.
Reference: Ziessman, O'Malley and Thrall, Nuclear Medicine: The Requisites, 4th ed. (2014)
Question 10 · Image Production / Processing
How can patient motion be checked in a SPECT study before reconstruction?
- AReview the reconstructed transverse slices after filtering
- BCheck the energy window setting
- CCompare the counts with the dose calibrator reading
- DPlay the projection cine and inspect the sinogram
Show answer and explanation
Correct answer: D. Play the projection cine and inspect the sinogram
Motion appears as jumps in the cine of projections and as breaks in the sinogram, and it should be found before reconstruction so that correction or repeat can be done. Final slices show the artefact but not its cause. The energy window and the dose reading are unrelated.
Reference: Christian and Waterstram, Nuclear Medicine and PET/CT: Technology and Techniques, 8th ed. (2017)
Free mock vs the full Nuclear Medicine Technologist bank
The mock tells you where you stand. The bank is how you close the gap.
| What you get | Free mock | Full bank |
|---|---|---|
| Questions | 25 | 450+ |
| Papers | 1 short timed set | 3 to 6 full-length papers, about 150 each |
| Blueprint coverage | 9 of 9 domains | All 9 domains, 65 sub-topics |
| Worked rationale | Every question | Every question |
| Reference | Every question | Every question |
| Timing | 30 minutes in your browser | Exam-length papers to sit against the clock |
| Format | Online, free | PDF sent to you, yours to keep |
| Price | Free | AED 269, paid once |
Full Nuclear Medicine Technologist bank
Close your gaps before exam day
- 450+ original questions in 3 to 6 full-length papers
- A worked rationale and a reference on every question
- Prepared for your regulator's blueprint and pass mark
One-time price
AED 269
About a third of one exam fee (about AED 880 per attempt)
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